Sheikh Zayed Mosque, the second largest mosque in the world, can fit up to 40,000 people. Containing elements from all over the world, this palace cost about $550 million (US dollars) to construct, with more to go!

Sheikh Zayed Mosque, the second largest mosque in the world, can fit up to 40,000 people. Containing elements from all over the world, this palace cost about $550 million (US dollars) to construct, with more to go!